Home / 407,075.20-561,396.18-254,127.46

Finding the Fourth Proportional to 407,075.20, 561,396.18 and 254,127.46

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Solution

The fourth proportional to 407,075.20, 561,396.18 and 254,127.46 is: 350,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,075.20 : 561,396.18 = 254,127.46 : x
  2. Step 2: Convert to fraction form
    407,075.20/561,396.18 = 254,127.46/x
  3. Step 3: Cross multiply
    407,075.20x = 561,396.18 × 254,127.46
  4. Step 4: Simplify right side
    407,075.20x = 142,666,185,277.10
  5. Step 5: Solve for x
    x = 142,666,185,277.10/407,075.20
  6. Step 6: Final answer
    x = 350,466.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.